Finding the Fourth Proportional to 2,006.86, 2,769.32 and 1,122.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,006.86 : 2,769.32 = 1,122.72 : x
2. Step 2: Convert to fraction form
   2,006.86/2,769.32 = 1,122.72/x
3. Step 3: Cross multiply
   2,006.86x = 2,769.32 × 1,122.72
4. Step 4: Simplify right side
   2,006.86x = 3,109,170.95
5. Step 5: Solve for x
   x = 3,109,170.95/2,006.86
6. Step 6: Final answer
   x = 1,549.27